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Finding the Fourth Proportional to 112,897, 155,801.70 and 73,222.12

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Solution

The fourth proportional to 112,897, 155,801.70 and 73,222.12 is: 101,049.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,897 : 155,801.70 = 73,222.12 : x
  2. Step 2: Convert to fraction form
    112,897/155,801.70 = 73,222.12/x
  3. Step 3: Cross multiply
    112,897x = 155,801.70 × 73,222.12
  4. Step 4: Simplify right side
    112,897x = 11,408,130,773.60
  5. Step 5: Solve for x
    x = 11,408,130,773.60/112,897
  6. Step 6: Final answer
    x = 101,049.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.